1.
Name the multiplicative inverse of 5.
A.
50
B.
0.2
C.
-5
D.
20
Hint
2.
Name the property illustrated by the statement below.
If 5
n
= 15, then 15 = 5
n
.
A.
symmetric property of equality
B.
transitive property of equality
C.
reflexive property of equality
D.
substitution property of equality
Hint
3.
Solve 2(
y
- 9) < 6.
A.
{
y
|
y
< 12}
B.
{
y
|
y
< 6}
C.
{
y
|
y
> -6}
D.
{
y
|
y
> 12}
Hint
4.
Solve the system of equations by graphing.
A.
infinitely many solutions
B.
no solution
C.
(0, 3)
D.
(-1, 7)
Hint
5.
Use the elimination method to solve the system of equations.
A.
B.
C.
D.
Hint
6.
What is the solution of the system of inequalities?
A.
B.
region 2
C.
region 3
D.
region 1
Hint
7.
Find
A
-
B
if
and
A.
B.
C.
D.
Hint
8.
Write the matrix equation
as a system of linear equations.
A.
-2
s
+ 5
t
= 7
s
+ 8
t
= 12
B.
-2
s
+
t
= 7
5
s
+ 8
t
= 12
C.
-2
s
+
t
= 12
5
s
+ 8
t
= 7
D.
-2
s
= 7
5
t
= 12
Hint
9.
Simplify (4
r
-
s
) - (
r
+ 2
s
) + (3
r
-
s
).
A.
8
r
B.
3
r
- 2
s
C.
6
r
- 4
s
D.
6
r
- 3
s
Hint
10.
The volume of the cube is 512 cubic centimeters. What is the length of one side?
A.
256 cm
B.
23 cm
C.
170 cm
D.
8 cm
Hint
11.
Simplify
A.
B.
C.
D.
Hint
12.
Solve
x
2
+ 2
x
- 15 > 0.
A.
{
x
| -5 <
x
< 3}
B.
{
x
|
x
< -3 or
x
> 5}
C.
-3, 5
D.
{
x
|
x
< -5 or
x
> 3}
Hint
13.
Solve 2
m
2
- 3
m
-2
0.
A.
B.
C.
D.
Hint
14.
Evaluate
z
– (2
yz
+
y
) ·
y
if
y
= -3 and
z
= 2.
A.
-43
B.
23
C.
9
D.
47
Hint
15.
Evaluate
if
a
= 2,
b
= 4, and
c
= -1.
A.
7
B.
-14
C.
2.4
D.
1
Hint
16.
Name the property of equality illustrated by the following statement. If
n
– 3 = 5 + 4, then
n
– 3 = 9.
A.
Substitution
B.
Transitive
C.
Symmetric
D.
Reflexive
Hint
17.
Solve the equation | 3
a
+ 2 | - 2 = 4
a
+ 1.
A.
B.
C.
D.
-1
Hint
18.
Evaluate
A.
128
B.
38
C.
–38
D.
–128
Hint
19.
In the inequality
what must
q
be greater than or equal to?
A.
5
B.
9
C.
21
D.
0
Hint
20.
Solve
by graphing.
A.
{
x
| –1.12 <
x
< 0}
B.
{
x
| 0 <
x
< 3}
C.
{
x
| 0 <
x
< 3.12}
D.
{
x
| –1.12 <
x
< 3.12}
Hint